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1927db1f | 1 | /* |
f1717362 | 2 | * Copyright (C) 2012-2016 Free Software Foundation, Inc. |
1927db1f | 3 | * |
4 | * This file is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the | |
6 | * Free Software Foundation; either version 3, or (at your option) any | |
7 | * later version. | |
8 | * | |
9 | * This file is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * General Public License for more details. | |
13 | * | |
14 | * Under Section 7 of GPL version 3, you are granted additional | |
15 | * permissions described in the GCC Runtime Library Exception, version | |
16 | * 3.1, as published by the Free Software Foundation. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License and | |
19 | * a copy of the GCC Runtime Library Exception along with this program; | |
20 | * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
21 | * <http://www.gnu.org/licenses/>. | |
22 | */ | |
23 | ||
24 | #include "sfp-machine.h" | |
25 | ||
26 | void | |
27 | __sfp_handle_exceptions (int _fex) | |
28 | { | |
29 | double d; | |
30 | ||
31 | if (_fex & FP_EX_INVALID) | |
32 | { | |
33 | asm volatile ("frcpa.s0 %0, p1 = f0, f0" : "=f" (d) : : "p1"); | |
34 | } | |
35 | if (_fex & FP_EX_DIVZERO) | |
36 | { | |
37 | asm volatile ("frcpa.s0 %0, p1 = f1, f0" : "=f" (d) : : "p1"); | |
38 | } | |
39 | if (_fex & FP_EX_OVERFLOW) | |
40 | { | |
41 | d = __DBL_MAX__; | |
42 | asm volatile ("fadd.d.s0 %0 = %0, %0" : "+f" (d)); | |
43 | } | |
44 | if (_fex & FP_EX_UNDERFLOW) | |
45 | { | |
46 | d = __DBL_MIN__; | |
47 | asm volatile ("fnma.d.s0 %0 = %0, %0, f0" : "+f" (d)); | |
48 | } | |
49 | if (_fex & FP_EX_INEXACT) | |
50 | { | |
51 | d = __DBL_MAX__; | |
52 | asm volatile ("fsub.d.s0 %0 = %0, f1" : "+f" (d)); | |
53 | } | |
54 | } |